Molding-flask.



J. TUOHY.

MOLDING FLASK. APPLICATION FILED JUNE 1, 1911.

1,005,369, Patented Oct. 10, 1911.

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JOHN TUOI-IY, OF BLACK DIAMOND, CALIFORNIA.

MOLDING-FLASK.

Specification of Letters Patent.

Patented Oct. 10, 1911.

Application filed June 7, 1911. Serial No. 631,784.

To all whom it may concern:

Be it known that 1, JOHN TUoHY, a citizen of the United States, residingat Black Diamond, in the county of Contra Costa, State of California,have invented certain new and useful Improvements in Molding- Flasks;and I do declare the following to be a full, clear, and exactdescription of the same, such as will enable others skilled in the artto which it appertains to make and use the same, reference being had tothe accompanying drawings, and to the characters of reference markedthereon, which form a part of this application.

This invention relates to improvements in metal molding paraphernalia,and particu larly to the molding flasks used for molding metal of allkinds, the object of the invention being to produce a molding flaskwhich will have adjustable and interchangeable side members whereby themold can be readily changed to any size or shape desired by theinsertion of extra pieces or additions, as will appear.

A further object of the invention is to produce a simple and inexpensivedevice, and yet one which will be exceedingly effective for the purposesfor which it is designed.

These objects I accomplish by means of such structure and relativearrangement of parts as will fully appear by a perusal of the followingspecification and claims.

In the drawings similar characters of reference indicate correspondingparts in. the several views.

Figure 1 is a perspective view of my improved molding flask. Fig. 2 is aperspective view of an extra or additional side member. Fig. 3 is asectional view taken on a line XX of Fig. 1. Fig. 4 is a fragmentary endview of a flask bar. Fig. 5 is a side view of a fragmentary end of oneof the sides of the flask partly in section as on a line YY of Fig. 1.Fig. 6 is a perspective view of a wedge shaped key.

Referring now more particularly to the characters of reference on thedrawings, I first provide side members of the molding flask as at 1,which side members have projecting tongues 2 on each end, such tongueshaving cross heads 3, and I then provide adjacent side members for saidside members 1, which adjacent side members are provided with sidegrooves 5 at each end, which grooves 5 are of a shape to receive thetongues 2 and cross heads 3, whereby said members 4 may be locked totheir adjacent members 1, as shown in Fig. 1. The said grooves 5 areprovided with bottoms 6 to prevent the members 1 from passing all theway through the members 4 when the flask is in use.

When the members 1 are fitted in the members 4 by the structuredescribed, a wedge shaped key 7 may be projected through members 9hereinafter described and the members 2-3 or just round pins 8 may beused, whereby they may be held together for use.

In constructing my improved side members 4, they are cast of solidmaterial sul stantially channel shaped with solid end members 9 in whichare cast the slots 5. Similarly the side members 1 are cast in one solidmember substantially channel shaped with end members-10, and with thetongues 2 and cross heads 3 cast solid on their ends.

The structure above shown of the tongue and groove mechanism isextremely adaptable for changing the size of the molding flask desiredby addition of auxiliary or extra pieces 11 of different and varyinglengths with the tongue and cross head structure on one end and thegroove structure on the other end, whereby they may be inserted tochange the size or shape of the flas In connection with my improvedmolding flask, the structure of which is above described, I have shownin Fig. 1 three different kinds of flask. bars which I will describe inorder, namely: 1st: I can cast on the inner sides of the members 1 twospaced flanges 12, between which may flt a flat flask bar 13 held inposition by either wedges or pins similar to the wedges 7 or pins 8.2nd: A slotted guide 14 may be cast on the inner edge of the members 1and a bar 15 having a projecting flange 16 fitted into said groovedguide 14 and held therein by wedges or pins, as above. 3rd: A flask bar17 having cross heads 18 adapted to fit in grooves 19 formed byprojecting flanges 20 cast on the member 1, the flask bar to be held inposition by wedges or pins as shown. Any of these various forms of flaskbars shown would 'be very adaptable and especially eflicient forcircular molding flasks.

From the foregoing description it will readily appear that I haveproduced such a device as substantially fulfils the objects of theinvention as set forth herein.

lVhile this specification sets forth in detail the present and preferredconstruction of the device, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention.

Having thus described my invention What.

I claim as new and useful and desire to secure by Letters Patent is 1. Amolding flask comprising side members, one of said side members beingformed at each end with projecting tongues, cross heads on said tongues,the adjacent side members having corresponding grooves to receive saidtongues and cross heads, said grooves having bottom members, asdescribed.

2. A molding flask comprising side members, said side members beingsubstantially channel shaped, solid members at each end of each channel,one of said side members being formed at each end With projectingtongues provided With slots, cross-heads on said tongues, the adjacentside members having corresponding grooves to receive said tongues andcross-heads, the solid members on said adjacent side members also beingprovided with slots adapted to register With the slots in saidprojecting tongues, as described.

In testimony whereof I aflix my signa- 30 ture in presence of twoWitnesses.

JOHN TUOHY.

Witnesses PERCY S. WEBSTER, FRANK H. CARTER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). O.

